Adjustable unequal-length sling

Abstract

The utility model relates to the technical field of slings, in particular to an adjustable unequal-length sling, which is provided with the combination of a group of fixed-length lifting ropes and two groups of adjustable fixed lifting ropes, is suitable for lifting different articles, and improves the practicability. Comprising a main lifting rope, a first connector, a fixed-length lifting rope, a connecting rope, a shaft frame, a movable shaft, a rolling wheel, a movable lifting rope, an open groove, a jacking threaded sleeve, a jacking threaded rod and a jacking twisting handle, the bottom end of the main lifting rope is connected with the middle of the top end of the first connector, and one side of the bottom end of the first connector is connected with the top end of the fixed-length lifting rope; the other two sides of the bottom end of the first connector are connected with the top ends of a set of connecting ropes respectively, the bottom ends of the connecting ropes are connected with the top end of a shaft frame, the inner side of the shaft frame is rotationally connected with the middle of the outer side of a rolling wheel through a movable shaft, and a movable lifting rope is movably wound around the annular side of the rolling wheel. The inner wall of the jacking screw sleeve is in threaded connection with the outer wall of the jacking screw rod, and the outer side of the jacking screw rod is connected with the middle of the inner side of the jacking screwing handle.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to an adjustable sling of unequal lengths. Background Art

[0002] Slings are the connecting parts between the crane or the main body of the hoist and the hoisted object. They are the general term for slings and slings. Slings are mainly divided into two categories: metal slings and synthetic fiber slings. Among them, metal slings mainly include wire rope slings, chain slings, shackles, hooks, slings (clamps), magnetic slings, etc.; synthetic fiber slings mainly include rope and belt slings made of nylon, polypropylene, polyester, and high-strength and high-modulus polyethylene fibers.

[0003] There is a sling with Chinese patent publication number CN116354219A, which includes a mounting block, an H-shaped slide rail, a limit block, a sliding block, a telescopic assembly, a steering assembly, a sling assembly and a connecting assembly, which solves the technical problem that there is no corresponding remedial measure when the sling breaks, which will directly trigger a safety accident.

[0004] However, since all the sling components of this device are designed with fixed lengths, it does not meet the lifting requirements of some special-shaped parts and is not practical enough. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an adjustable unequal-length sling which is provided with a combination of a set of fixed-length sling ropes and two sets of adjustable fixed sling ropes to meet the lifting requirements of different items and improve practicality.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an adjustable unequal-length lifting sling, comprising a main lifting rope, a connecting head, a fixed-length lifting rope, a connecting rope, an axle frame, a movable shaft, a reel, a movable lifting rope, a slot, a tightening nut, a tightening screw and a tightening hand. The bottom end of the main lifting rope is connected to the middle part of the top end of the connecting head, one side of the bottom end of the connecting head is connected to the top end of the fixed-length lifting rope, and the other two sides of the bottom end of the connecting head are respectively connected to the top end of a group of connecting ropes. The bottom end of the connecting rope is connected to the top end of the axle frame, the inner side of the axle frame is rotatably connected to the middle part of the outer side of the reel via the movable shaft, the reel ring side is movably wound with a movable lifting rope, a lifting mechanism is provided at the bottom end of the fixed-length lifting rope and the movable lifting rope, a plurality of groups of slots are circumferentially arranged on one side of the reel, and a tightening nut is connected to the same side of the slot at the outer end of the axle frame, the inner wall of the tightening nut is screwed with the outer wall of the tightening screw, and the outer side of the tightening screw is connected to the middle part of the inner side of the tightening hand.

[0009] Preferably, it also includes a rocker and a crank, one side of the outer end of the movable shaft is connected to one side of the inner end of the rocker, and the other side of the outer end of the rocker is rotatably connected to the inner end of the crank.

[0010] Preferably, it further comprises a limiting plate, and both sides of each group of the rollers are respectively connected to the inner middle part of a group of limiting plates.

[0011] Preferably, the lifting mechanism includes a second connector and a lifting hook, and the bottom sides of the movable lifting rope and the fixed-length lifting rope are respectively connected with a group of second connectors, and the bottom ends of the second connectors are connected to the top end of the lifting hook.

[0012] Preferably, it also includes a hinge, a baffle and a spring, the upper inner side of the lifting hook at the second bottom end of the connecting head is movably connected to the top of the baffle via the hinge, and the baffle and the inner side of the lifting hook are connected with a spring.

[0013] Preferably, it further comprises an information plate, and one side of an outer end of the connector is connected to the inner side of the information plate.

[0014] Preferably, the main lifting rope, fixed-length lifting rope, connecting rope and movable lifting rope are all woven together from stainless steel wires.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an adjustable unequal length sling, which has the following beneficial effects:

[0017] The movable shaft is in the shaft frame and the reel is constrained to rotate, so that the dynamic lifting rope can be wound and unwound accordingly on the outside of the reel. After it is in place, the tightening handle can be turned to rotate the tightening screw. The tightening screw is threaded with the tightening screw sleeve and acts inward on the corresponding slot to clamp it, so that the combined length of the connecting rope and the dynamic lifting rope can be fixed. After that, the two groups of adjusted dynamic lifting ropes can be combined with the original fixed-length lifting ropes to adapt to the lifting of the lifting object under the connection of the main lifting rope through the lifting mechanism. A combination of a fixed-length lifting rope and two groups of adjustable fixed lifting ropes is set to meet the lifting needs of different items and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axial view of the schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Right view of;

[0020] Figure 3 For this utility model Figure 1 Rear view of

[0021] Figure 4 For this utility model Figure 1 Bottom view of .

[0022] Markings in the attached figure: 1. main lifting rope; 2. connector 1; 3. fixed-length lifting rope; 4. connecting rope; 5. shaft frame; 6. movable shaft; 7. reel; 8. moving lifting rope; 9. slot; 10. tightening screw sleeve; 11. tightening screw; 12. tightening handle; 13. rocker; 14. crank handle; 15. limit plate; 16. connector 2; 17. lifting hook; 18. hinge; 19. baffle; 20. spring; 21. information plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-4 , an adjustable unequal length lifting sling, comprising a main lifting rope 1, a connector 2, a fixed-length lifting rope 3, a connecting rope 4, an axle frame 5, a movable shaft 6, a reel 7, a dynamic lifting rope 8, a slot 9, a tightening screw sleeve 10, a tightening screw 11 and a tightening hand 12, the bottom end of the main lifting rope 1 is connected to the middle of the top of the connector 2, one side of the bottom end of the connector 2 is connected to the top of the fixed-length lifting rope 3, the other two sides of the bottom end of the connector 2 are respectively connected to the top of a group of connecting ropes 4, the bottom end of the connecting rope 4 is connected to the top of the axle frame 5, the inner side of the axle frame 5 is rotatably connected to the middle of the outer side of the reel 7 through the movable shaft 6, the reel 7 ring side is movably wound with a dynamic lifting rope 8, the fixed-length lifting rope 3 and the dynamic lifting rope 8 are provided with a lifting mechanism, a plurality of groups of slots 9 are circumferentially arranged on one side of the reel 7, the axle The slot 9 at the outer end of the frame 5 is connected to a tightening screw sleeve 10 on the same side, and the inner wall of the tightening screw sleeve 10 is threadedly connected to the outer wall of the tightening screw 11, and the outer side of the tightening screw 11 is connected to the middle part of the inner side of the tightening hand 12; in the shaft frame 5, the reel 7 is constrained by the movable shaft 6 to rotate, so that the movable lifting rope 8 can be correspondingly wound and unwound on the outer side of the reel 7. After it is in place, the tightening hand 12 can be screwed to rotate the tightening screw 11. The tightening screw 11 is threadedly matched with the tightening screw sleeve 10 and acts inwardly on the corresponding slot 9 to clamp, so that the combined length of the connecting rope 4 and the movable lifting rope 8 can be fixed, and then the two groups of adjusted movable lifting ropes 8 can be combined with the original length lifting rope 3 to adapt to the lifting of the lifting object through the lifting mechanism under the connection of the main lifting rope 1.

[0026] The utility model also includes a rocking piece 13 and a crank handle 14. One side of the outer end of the movable shaft 6 is connected to one side of the inner end of the rocking piece 13, and the other side of the outer end of the rocking piece 13 is rotatably connected to the inner end of the crank handle 14. By holding the crank handle 14, the rocking piece 13 can be shaken to make the movable shaft 6 connected to the winding wheel 7 rotate, so as to facilitate the winding and unwinding operation.

[0027] It also includes limiting plates 15, and the two sides of each group of winding wheels 7 are respectively connected to the inner middle part of a group of limiting plates 15; the two groups of limiting plates 15 can limit the left and right sides of the winding wheel 7 to prevent the moving rope 8 from slipping out, thereby improving reliability.

[0028] The lifting mechanism includes a connector 16 and a lifting hook 17. The bottom sides of the movable lifting rope 8 and the fixed-length lifting rope 3 are respectively connected with a group of connectors 16. The bottom end of the connector 16 is connected to the top of the lifting hook 17. When the connector 16 is connected, the lifting hook 17 can limit the bottom and sides to avoid slipping and realize lifting.

[0029] It also includes a hinge 18, a baffle 19 and a spring 20. The upper side of the inner part of the lifting hook 17 at the bottom end of the connecting head 16 is movably connected to the top of the baffle 19 through the hinge 18, and the baffle 19 and the inner side of the lifting hook 17 are connected with a spring 20; the spring 20 can be overcome to allow the baffle 19 to be retracted under the constraint of the hinge 18, thereby entering the lifting stage, and then under the elastic action of the spring 20, the baffle 19 can be constrained by the hinge 18 and elastically restored by the spring 20, and the outer side of the lifting hook 17 can be closed to prevent the lifting from slipping out and improve reliability.

[0030] It also includes an information plate 21, and one side of the outer end of the connector 2 is connected to the inner side of the information plate 21; the device information can be displayed through the information plate 21, which is convenient for reading and auxiliary use, thereby improving convenience.

[0031] The main lifting rope 1, the fixed-length lifting rope 3, the connecting rope 4 and the moving lifting rope 8 are all woven together with stainless steel wires; the rigidity of the main lifting rope 1, the fixed-length lifting rope 3, the connecting rope 4 and the moving lifting rope 8 is increased, and they are not easy to break, and have good oxidation and corrosion resistance, thus improving reliability.

[0032] In summary, when an adjustable unequal-length sling is in use, the crank handle 14 can be held in the shaft frame 5 to shake the shaking plate 13, so that the movable shaft 6 connected to the winding wheel 7 can be rotated, and the movable lifting rope 8 can be correspondingly wound and unwound on the outside of the winding wheel 7. The two sets of limiting plates 15 can limit the left and right sides of the winding wheel 7 to prevent the movable lifting rope 8 from slipping out. After it is in place, the tightening hand 12 can be screwed to rotate the tightening screw 11. The tightening screw 11 is threadedly matched with the tightening screw sleeve 10 to act inwardly on the corresponding slot 9 to clamp, so that the combined length of the connecting rope 4 and the movable lifting rope 8 can be fixed. Afterwards, the two sets of adjusted movable lifting ropes 8 can be combined with the original length lifting rope 3 to overcome the spring 20 allows the baffle 19 to be retracted under the constraint of the hinge 18, thereby entering the lifting stage, and then under the elastic action of the spring 20, the baffle 19 can be elastically restored by the spring 20 under the constraint of the hinge 18, and the outer side of the lifting hook 17 can be closed to prevent the lifting from slipping out. Under the connection of the connecting head 2 16, the lifting hook 17 can limit the bottom and sides to prevent it from slipping out, and the lifting can be achieved under the connection of the main lifting rope 1. In addition, the information of the device can be displayed through the information board 21, which is convenient for reading and auxiliary use, thereby improving convenience. Its steel wire braiding composition increases the rigidity of the main lifting rope 1, the fixed-length lifting rope 3, the connecting rope 4 and the moving lifting rope 8 themselves, is not easy to break, and has good oxidation corrosion resistance, thereby improving reliability.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable unequal length sling, characterized in that: The utility model comprises a main lifting rope (1), a connecting head (2), a fixed-length lifting rope (3), a connecting rope (4), an axle frame (5), a movable shaft (6), a reel (7), a movable lifting rope (8), a slot (9), a tightening screw sleeve (10), a tightening screw rod (11) and a tightening screw hand (12), wherein the bottom end of the main lifting rope (1) is connected to the middle of the top end of the connecting head (2), one side of the bottom end of the connecting head (2) is connected to the top end of the fixed-length lifting rope (3), the other two sides of the bottom end of the connecting head (2) are respectively connected to the top end of a group of connecting ropes (4), the bottom end of the connecting rope (4) is connected to the axle frame, and the bottom end of the connecting rope (4) is connected to the axle frame. The inner side of the shaft frame (5) is connected to the middle part of the outer side of the winding wheel (7) through the movable shaft (6), the winding wheel (7) is movably wound with a moving rope (8), the bottom ends of the fixed-length rope (3) and the moving rope (8) are provided with a lifting mechanism, one side of the winding wheel (7) is provided with a plurality of groups of slots (9) in the circumferential direction, the slots (9) at the outer end of the shaft frame (5) are connected with a jacking screw sleeve (10) on the same side, the inner wall of the jacking screw sleeve (10) is screwedly connected with the outer wall of the jacking screw rod (11), and the outer side of the jacking screw rod (11) is connected with the middle part of the inner side of the jacking screw hand (12).

2. The adjustable unequal length sling according to claim 1, characterized in that: It also includes a rocker (13) and a crank (14), wherein one side of the outer end of the movable shaft (6) is connected to one side of the inner end of the rocker (13), and the other side of the outer end of the rocker (13) is rotatably connected to the inner end of the crank (14).

3. The adjustable unequal length sling according to claim 1, characterized in that: It also comprises a limiting plate (15), and the two sides of each group of the reels (7) are respectively connected to the inner middle part of a group of limiting plates (15).

4. The adjustable unequal length sling according to claim 1, characterized in that: The lifting mechanism comprises a second connector (16) and a lifting hook (17); the bottom sides of the movable lifting rope (8) and the fixed-length lifting rope (3) are respectively connected with a group of second connectors (16); the bottom end of the second connector (16) is connected to the top end of the lifting hook (17).

5. The adjustable unequal length sling according to claim 4, characterized in that: It also includes a hinge (18), a baffle (19) and a spring (20). The upper inner side of the lifting hook (17) at the bottom end of the second connector (16) is movably connected to the top of the baffle (19) via the hinge (18). The inner sides of the baffle (19) and the lifting hook (17) are connected with a spring (20).

6. The adjustable unequal length sling according to claim 1, characterized in that: It also includes an information plate (21), and one side of the outer end of the connector 1 (2) is connected to the inner side of the information plate (21).

7. The adjustable unequal length sling according to claim 1, characterized in that: The main lifting rope (1), the fixed-length lifting rope (3), the connecting rope (4) and the movable lifting rope (8) are all formed by braiding a combination of stainless steel wires.

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